What do you get when you combine a Philly Cheesesteak with a Sloppy Joe? A platter full of Philly Cheesesteak Sloppy Joes that will make your whole family say WOW!
In a large skillet, brown the ground beef over medium-high heat until a deep crust forms. Break apart the beef as it cooks.
Remove the beef, leaving the fat in the skillet. Add butter, onions, bell peppers, and mushrooms to the skillet. Cook without stirring for 1-2 minutes to allow browning, then stir and repeat.
Return the beef to the skillet with the vegetables.
In a small bowl, whisk together beef broth and cornstarch.
Stir in ketchup, Worcestershire sauce, salt, black pepper, and the beef broth mixture into the skillet with the beef and vegetables.
Cook until the mixture thickens, with most of the beef above the liquid, about 3-5 minutes.
Remove from heat and blend in the chopped provolone cheese until melted.